Acids And Bases Flashcards
Acids
Sour taste, corrosive, becomes neutral after reactions with alkali and proton donor
Bases
Bitter, gives soapy solutions, reacts with acids to give neutral salts, produces hydroxide ions in water and proton acceptor
Alkali
Base that dissolves in water
Ph scale
Method of expressing acidity
Indicator paper
Change color at a known characteristic ph value
Neutralization reaction
Exothermic reaction where a strong acid reacts with a strong base
Equivalence point
When the minimum amount of acid has been added to react with all of the alkali
Amides
Are not basic, and are very stable
Acid-base equilibrium
Position of equilibrium depends on extent of ionization
Ka value
High value means strong acid and equilibrium lies to the right
How does concentration affect percent ionization
More dilute acid solution leads to a greater fraction dissociated
Buffer solutions
Mixtures of weak acid or base with a corresponding salt that resist large ph changes